Featuring black handles and a range of positions, Schneider Electric offers the Harmony ZB4 series of key switch heads. Round and chrome plated metal, they are designed to be durable, simple to set up, flexible and robust. Each switch head contains an ingenious locking system which is a snap-fit head and body, the heads can be tightened with a single screw to ensure secure and simple mounting. We have a large range of Harmony ZB4 key switch heads available in our catalogue with different positions and operator type to suit your needs.

All heads require a body/fixing collar and contact bodies which are available from our catalogue of products:
Collar 331-0142
Contact bodies 331-0158

• Low-load electrical contact
• Screw clamp connection, pins for printed circuit
• Ingenious locking system
• Flexible and robust
• -40°C to 70°C operating temperature

• Conformity with IEC, UL, CSA standards
• IP67, IP66 conforming to IEC 60529, IP69 and IP69K
• NEMA 13 and NEMA 4X
• IK06 conforming to IEC 50102

Applications - Designed for industry, infrastructure and service sector use including:
• Automotive
• Control system panel builders
• Energy distribution
• Public works
• Building
• Airports

This key switch head by Schneider Electric is designed with a 22 mm cutout specifically for the Harmony XB4 series. It offers precise and reliable control for various applications in automation and electronics.

• Chromium plated metal bezel for durability
• Operator profile with black key switch for easy identification
• 2 positions with 90° angle of throw for efficient operation
• Ronis 520E keylock type for security
• IP66, IP67, IP69K protection for use in demanding environments

• Suitable for use in control panels for machinery
• Can be used for applications requiring precise key-controlled access

Yes, this key switch head can operate at temperatures ranging from -40°C to +70°C.

Yes, it is designed to fit a 22 mm cutout reliably.

Yes, this key switch head has IP66, IP67, and IP69K protection ratings, making it suitable for outdoor use.